alignment padding is applied based on the next column's data type,
  so, for example, we cannot state that for "boolean" (1 byte of
  data), the alignment is not needed. This commit fixes the logic
  in the doc.

Update ordering_table_columns.md

Typos fixed

more polishing of text

Minor improvements of text style

Get rid of two "following" words in one line, having different meanings

More text style polishing according @eread's comments